Silicone Wristbands are waterproof, shake proof and resistant to high temperature. It could be widely used ... AvailableLF: TK4100,EM4200,EM4305,T5577, Hitag 1,Hitag 2,Hitag Series etc.HF:MF Classic 1K,MF Classic 4K,MF Ultralight ... -50°C~240°CMain FeatureSoft, flexible, convenience wearing. Waterproof, quake proof, and high temperature resistant.ApplicationHospital for mother and baby care ...